The Four Treasures of the Study is a general term for a set of tools for painting and writing in ancient China, namely paper, ink, brush pen and ink stone. The quality of the Four Treasures of the Study plays a decisive role in one's painting and calligraphy. Therefore, scholars engaging in traditional Chinese painting and calligraphy attached much importance to the choice of the tools. The products of "the Four Treasures of the Study" elaborately made during the Tang and Song Dynasties are highly praised by later scholars for their superior quality. To some extent, the Four Treasures of the Study is an important factor which has promoted the development of traditional Chinese culture.